High Seas Forecast
Issued by NWS
Issued by NWS
134 FZPN40 PHFO 102132 HSFNP HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI ISSUED BY OCEAN PREDICTION CENTER WASHINGTON DC 2300 UTC MON AUG 10 2026 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT. THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE HIGHER THAN 10-MINUTE AVERAGE WINDS. SECURITE NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W SYNOPSIS VALID 1800 UTC AUG 10 2026. 24 HOUR FORECAST VALID 1800 UTC AUG 11 2026. 48 HOUR FORECAST VALID 1800 UTC AUG 12 2026. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST .TROUGH FROM 30N159W TO 26N161W MOVING E 10 KT. .24 HOUR FORECAST TROUGH DISSIPATED. .LOW 10N141W 1007 MB MOVING N 10 KT. SCATTERED MODERATE TSTMS WITHIN 240 NM E AND W SEMICIRCLES FROM LOW CENTER. .24 HOUR FORECAST LOW NEAR 13N140W 1003 MB. WINDS 20 TO 30 KT WITHIN 300 NM W SEMICIRCLE FROM LOW CENTER. .48 HOUR FORECAST LOW NEAR 14N142W 1000 MB. TROPICAL CYCLONE POSSIBLE. WINDS 20 TO 30 KT WITHIN 420 NM FROM LOW CENTER. SEAS 2.5 TO 4 M WITHIN 480 NM N SEMICIRCLE OF LOW CENTER... AND 360 NM S SEMICIRCLE OF LOW CENTER. .OTHERWISE...WINDS 20 KT OR LESS OVER THE REMAINDER OF FORECAST AREA. .24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 12N TO 19N W OF 155W. .48 HOUR FORECAST SEAS SUBSIDING TO 2.5 M OR BELOW. .OTHERWISE...SEAS 2.5 M OR LOWER OVER THE REMAINDER OF FORECAST AREA. .ITCZ FROM 05N153W TO 06N161W TO 03N170W TO 05N180W. ISOLATED MODERATE TSTMS WITHIN 90 NM OF ITCZ E OF 176W...AND WITHIN 240 NM OF ITCZ W OF 173W. .MONSOON TROUGH FROM 12N140W TO LOW MENTIONED ABOVE TO 06N150W. .ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 90 NM OF POINT 17N168W AND WITHIN 150 NM OF POINT 13N158W...AND ELSEWHERE WITHIN 90 NM EITHER SIDE OF A LINE FROM 04N149W TO 01N163W. $$ .FORECASTER KELLS. HONOLULU HI.